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gr-qc2024
Photon ring bounds of scalar hairy charged black holes
Yun Soo Myung
We study photon rings of constant scalar hairy black holes with mass , charge , and scalar hair obtained from the Einstein-Maxwell-conformally coupled scalar theory. Thes…
gr-qc2024
Scalarization of Kerr-Newman black holes in the Einstein-Chern-Simons-scalar theory
Kun-Hui Fan, Yun Soo Myung, De-Cheng Zou +1
We investigate the tachyonic instability of Kerr-Newman (KN) black hole with a rotation parameter in the Einstein-Chern-Simons-scalar theory coupled with a quadratic massive sc…